Minor release with patches and improved usability and documentation.

Release 0.1.1 focuses on the completion of
https://gitlab.palpant.us/justin/palpantlab-infra/milestones/4. Included
in this release are primarily: a CHANGELOG which will be kept up to
date; significant detail in the README; a few version-bumps of
deployed software; the first stab at supporting users; first cut of
support for dynamically provisioned PVs, using NFS volumes as the
first prototype; and slightly-improved alerting with Alertmanager.

Closes https://gitlab.palpant.us/justin/palpantlab-infra/milestones/4
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